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综合视角下的济南市绿色能源技术创新:驱动因素、障碍与跨区域比较分析

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财务管理研究 2024年第6期 164-168页

作者：季荣花高艳吴翠翠山东农业工程学院济南250100

绿色能源技术创新是实现能源转型和绿色发展的重要支撑。以济南市为例,从综合视角分析了绿色能源技术创新的驱动因素、障碍及与其他地区的比较。研究发现,济南市绿色能源技术创新受到政府政策、资金支持和人才等因素的影响,同时也面临... 详细信息

绿色能源技术创新是实现能源转型和绿色发展的重要支撑。以济南市为例,从综合视角分析了绿色能源技术创新的驱动因素、障碍及与其他地区的比较。研究发现,济南市绿色能源技术创新受到政府政策、资金支持和人才等因素的影响,同时也面临着技术壁垒、市场需求和管理体制等多重因素的挑战。通过与其他地区的比较,揭示了济南市在绿色能源技术创新方面的不足,并提出优化济南市绿色能源技术创新的建议。希望研究能为济南市及其他类似地区促进绿色能源技术创新和可持续发展提供有益参考。

关键词：绿色能源技术创新济南市综合视角

Novel encoder for ambient data compression applied to microcontrollers in agricultural robots

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International Journal of Agricultural and Biological Engineering 2022年第4期15卷 197-204页

作者： Yueting Wang Minzan Li ronghua ji Minjuan Wang Yao Zhang Lihua Zheng Key Laboratory of Smart Agriculture Systems Ministry of EducationChina Agricultural UniversityBeijing 100083China

Agricultural robots are flexible to obtain ambient information across large areas of farmland. However, it needs to face two major challenges: data compression and filtering noise. To address these challenges, an encoder for ambient data compression, named Tiny-Encoder, was presented to compress and filter raw ambient information, which can be applied to agricultural robots. Tiny-Encoder is based on the operation of convolutions and pooling, and it has a small number of layers and filters. With the aim of evaluating the performance of Tiny-Encoder, different three types of ambient information (including temperature, humidity, and light) were selected to show the performance of compressing raw data and filtering noise. In the task of compressing raw data, Tiny-Encoder obtained higher accuracy (less than the maximum error of sensors ±0.5°C or ±3.5% RH) and more appropriate size (the largest size is 205 KB) than the other two auto-encoders based convolutional operations with different compressed features (including 20, 60, and 200 features). As for filtering noise, Tiny-Encoder has comparable performance with three conventional filtering approaches (including median filtering, Gaussian filtering, and Savitzky-Golay filtering). With large kernel size (i.e., 5), Tiny-Encoder has the best performance among these four filtering approaches: the coefficients of variation with the large kernel (i.e., 5) were 8.6189% (temperature), 10.2684% (humidity), 57.3576% (light), respectively. Overall, Tiny-Encoder can be used for ambient information compression applied to microcontrollers in agricultural information acquisition robots.

关键词： agricultural information robot ambient information data compression embedded machine learning methods

Corrosion and in vitro cytocompatibility investigation on the designed Mg-Zn-Ag metallic glasses for biomedical application

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Journal of Magnesium and Alloys 2024年第4期12卷 1566-1580页

作者： jian Wang Lingzhong Meng Weixin Xie Chen ji ronghua Wang Pinghu Zhang Liling jin Liyuan Sheng Yufeng Zheng School of Mechanical Engineering Yangzhou UniversityYangzhou225127China Department of Materials Science and Engineering Seoul National UniversitySeoulSouth Korea Huizhou Port Customs Huizhou516081China jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Institute of Translational MedicineMedical CollegeYangzhou UniversityYangzhou225009China Center for Research in Computational Thermochemistry(CRCT) Department of Chemical EngineeringEcole polytechnique de MontréalMontréalQuébecH3C 3A7Canada Shenzhen Institute Peking UniversityShenzhen 518057China PKU-HKUST ShenZhen-HongKong Institution Shenzhen518057China

In the present work,seven Mg-Zn-Ag alloys with the nominal composition of Mg_(96-x)Zn_(x)Ag_(4)(x=17,20,23,26,29,32,35 in at.%)were prepared by induction melting and single-roller *** X-ray diffraction(XRD)analyses indicate the metallic glasses with three composition of Mg_(73)Zn_(23)Ag_(4),Mg_(70)Zn_(26)Ag_(4),and Mg_(67)Zn_(29)Ag_(4)were obtained *** differential scanning calorimetry(DSC)measurement was used to obtain the characteristic temperature of Mg-Zn-Ag metallic glasses for the glass-forming ability *** maximum glass transition temperature(Trg)was found to be 0.525 with a composition close to Mg_(67)Zn_(29)Ag_(4),which results in the best glass-forming ***,the immersion test in simulated body fluid(SBF)demonstrate the relative homogeneous corrosion behavior of the Mg-Zn-Ag metallic *** corrosion rate of Mg-Zn-Ag metallic glasses in SBF solution decreases with the increase of Zn *** sample Mg_(67)Zn_(29)Ag_(4)has the lowest corrosion rate of 0.19mm/yr,which could meet the clinical application requirement *** in vitro cell experiments show that the Madin-Darby canine kidney(MDCK)cells cultured in sample Mg_(67)Zn_(29)Ag_(4)and its extraction medium have higher ***,the Mg-Zn-Ag metallic glasses exhibit obvious inhibitory effect on human rhabdomyosarcoma(RD)tumor *** present investigations on the glass-forming ability,corrosion behavior,cytocompatibility and tumor inhibition function of the Mg-Zn-Ag based metallic glass could reveal their biomedical application possibility.

关键词： Metallic glasses Mg-Zn-Ag Corrosion behavior In vitro cytocompatibility

Design of Fuzzy Control Algorithm for Precious Irrigation System in Greenhouse

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Design of Fuzzy Control Algorithm for Precious Irrigation Sy...

Computer and Computing Technologies in Agriculture V——5th IFIP TC 5/SIG 5.1 Conference(CCTA 2011) Part Ⅲ

作者： ronghua ji Lijun Qi Zicheng Huo College of Information & Electrical Engineering China Agricultural University

The precious irrigation is of great significance for arid and semiarid *** to the special environment of greenhouse,a fuzzy control algorithm was proposed to make an optimal irrigation strategy based on the actual measured soil humidity during the whole plant growth *** fuzzy control system had two inputs(soil humidity error and its rate) and one output(water level difference).In this paper,the fuzzy control algorithm was introduced in detail which included the setting of input and output,the selection of membership function and the setting of fuzzy *** fuzzy control system was meaningful to the smart water-saving irrigation in greenhouse.

关键词： soil humidity fuzzy control algorithm irrigation greenhouse

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基于现代学徒制的校企实践教学研究

实验技术与管理 2017年第11期34卷 149-153页

作者：季荣华常州工程职业技术学院建筑工程学院江苏常州213164

以常州工程职业技术学院建筑工程技术专业为例,剖析现代学徒制中实践教学实施效果及影响因素,从培养方案、课程设置、资源建设、质量管理等方面探索相关举措,包括培养方案和课程设置、建设校企衔接的课程教学资源、改进教学组织模式、... 详细信息

以常州工程职业技术学院建筑工程技术专业为例,剖析现代学徒制中实践教学实施效果及影响因素,从培养方案、课程设置、资源建设、质量管理等方面探索相关举措,包括培养方案和课程设置、建设校企衔接的课程教学资源、改进教学组织模式、建设实践教学质量保障体系等。基于现代学徒制的人才培养模式是培养生产一线高技能高素质人才的有效方式。

关键词：现代学徒制实践教学校企合作

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基于复数神经网络的智能温室温度预测研究

中国农机化学报 2019年第4期40卷 174-178页

作者：徐宇冀荣华北华大学电气与信息工程学院吉林吉林132021 中国农业大学信息与电气工程学院北京市100083

温度趋势有效预测是实现智能温室环境精准调控的重要基础。作为温室最重要的环境参数,温室内温度与其它环境参数耦合度很高。在智能温室内连续8个月采集其环境数据,利用SPSS对其进行分析,掌握其时间序列特征,温室内温度及其它环境参数... 详细信息

温度趋势有效预测是实现智能温室环境精准调控的重要基础。作为温室最重要的环境参数,温室内温度与其它环境参数耦合度很高。在智能温室内连续8个月采集其环境数据,利用SPSS对其进行分析,掌握其时间序列特征,温室内温度及其它环境参数间相关性,筛选出与温度相关性高的光照度、空气湿度和土壤湿度,建立双隐层的复数神经网络的智能温室温度预测模型。将采集的12 900组样本数据划分为训练组和测试组数据,使得训练组和测试组数据覆盖到整个采集周期,以便能够全面反映数据规律。经过试验结果表明,网络结构为384-16-500-1时预测精度为0.873,相对测试误差最大为0.548。测试数据集预测精度为0.813,利用该模型进行温室温度预测时,阴天均方根误差RMSE较小。基于复数神经网络的温室温度预测模型可以有效预测温度,用于指导智能温室环境控制策略制定。

关键词：智能温室温度复数神经网络预测

The Segmentation of Conglutinated Droplets Based on Improved GLV Algorithm

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The Segmentation of Conglutinated Droplets Based on Improved...

作者： ronghua ji Kaiqun Hu Lu Mang Hongtao Wang Lijun Qi College of Information and Electronic Engineering China Agricultural University College of Engineering China Agricultural University

Precise control of droplet size plays a fundamental role in effective pesticide application,but precise droplet quality control is based on effective droplet measurement.A distinct advantage of the droplet size measurement by the image process technology is the higher efficiency and lower *** to the conglutinated droplet traces collected on samples,a separating process is necessary for a relatively accuracy *** conglutinated droplets are determined by the roundness value of 0.5 for the different shape between the conglutinated droplets and normal *** improved GLV algorithm is raised in this paper to separate the conglutinated droplets in order to improve measuring of droplet size *** improved GLV algorithm could separate the conglutinated droplets *** tests showed the error that comparing the results given by image process to that from laser analyzer was less than 6%.

关键词： Image Processing Conglutinated Droplets Droplet Size Distribution Improved GLV Algorithm

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直注式变量喷雾机设计与喷雾性能试验

农业机械学报 2010年第6期41卷 70-74,102页

作者：胡开群周舟祁力钧王秀冀荣华中国农业大学工学院北京100083 广州广船国际股份有限公司广州510328 北京农业信息研究中心北京100097 中国农业大学信息与电气工程学院北京100083

结合CAN总线和ISO11783协议,设计了基于处方图的直接注入式变量喷雾机。通过田间常量和变量施药作业试验分析了该直接注入式喷雾机的喷洒均匀性和精准度。试验结果表明:直接注入式变量喷雾机喷洒均匀,总体施药变异系数均低于10%,适合田... 详细信息

结合CAN总线和ISO11783协议,设计了基于处方图的直接注入式变量喷雾机。通过田间常量和变量施药作业试验分析了该直接注入式喷雾机的喷洒均匀性和精准度。试验结果表明:直接注入式变量喷雾机喷洒均匀,总体施药变异系数均低于10%,适合田间施药作业;变量作业时,与预期施药量相差在15%以内的作业区大于86%。

关键词：直注式变量喷雾机处方图喷洒均匀性精准度性能分析

基于PCA-SVM的棉花出苗期杂草类型识别

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农业机械学报 2012年第9期43卷 184-189,196页

作者：李慧祁力钧张建华冀荣华中国农业大学工学院北京100083 中国农业大学信息与电气工程学院北京100083

为了实现棉田中不同类型杂草的机器视觉识别,提出基于主成分分析和支持向量机的棉花出苗期杂草识别方法。该方法通过提取棉田图像中棉花和杂草的颜色、形状、纹理等特征,并利用主成分分析(PCA)降低特征变量空间维数,结合支持向量机,实... 详细信息

为了实现棉田中不同类型杂草的机器视觉识别,提出基于主成分分析和支持向量机的棉花出苗期杂草识别方法。该方法通过提取棉田图像中棉花和杂草的颜色、形状、纹理等特征,并利用主成分分析(PCA)降低特征变量空间维数,结合支持向量机,实现对棉田杂草类型分类。通过120个棉花杂草测试样本分类试验结果发现,经PCA降维得到的前3个主成分分量能有效减少支持向量机的训练时间和提高分类正确率;通过对比发现前3个主成分分量与径向基核函数支持向量机相结合效果最好,其训练时间为91 ms,平均分类正确率达98.33%。

关键词：棉花杂草识别图像处理主成分分析支持向量机